diff --git a/lib/docsify.js b/lib/docsify.js
index 63a6069..2dbcdf1 100644
--- a/lib/docsify.js
+++ b/lib/docsify.js
@@ -105,12 +105,16 @@ function getRoute () {
   return route
 }
 
+function isMobile () {
+  return /mobile/i.test(navigator.userAgent)
+}
+
 /**
  * Active sidebar when scroll
  * @link https://buble.surge.sh/
  */
 function scrollActiveSidebar () {
-  if (/mobile/i.test(navigator.userAgent)) { return }
+  if (isMobile()) { return }
 
   var anchors = document.querySelectorAll('.anchor');
   var nav = {};
@@ -198,8 +202,11 @@ function bindToggle (dom) {
 }
 
 var cacheContentDOM;
-function scroll2Top (dom) {
-  cacheContentDOM = cacheContentDOM || document.querySelector(dom);
+function scroll2Top () {
+  if (!cacheContentDOM) {
+    var dom = isMobile() ? 'body' : 'section.content';
+    cacheContentDOM = document.querySelector(dom);
+  }
   cacheContentDOM.scrollTop = 0;
 }
 
@@ -2412,7 +2419,7 @@ function renderArticle (content) {
   renderSidebar.rendered = false;
   renderNavbar.rendered = false;
 
-  if (OPTIONS$1.auto2top) { scroll2Top('section.content'); }
+  if (OPTIONS$1.auto2top) { scroll2Top(); }
 }
 
 /**
@@ -2468,14 +2475,16 @@ function renderLoading (ref) {
     CACHE['loading'] = div;
   }
 
-  CACHE['loading'].style.opacity = 1;
-  CACHE['loading'].style.width = num + '%';
   if (num >= 95) {
     clearTimeout(renderLoading.cacheTImeout);
+    CACHE['loading'].style.width = '100%';
     renderLoading.cacheTImeout = setTimeout(function (_) {
       CACHE['loading'].style.opacity = 0;
       CACHE['loading'].style.width = '0%';
     }, 200);
+  } else {
+    CACHE['loading'].style.opacity = 1;
+    CACHE['loading'].style.width = num + '%';
   }
 }
 
diff --git a/lib/docsify.min.js b/lib/docsify.min.js
index e8a267f..147e529 100644
--- a/lib/docsify.min.js
+++ b/lib/docsify.min.js
@@ -1,2 +1,2 @@
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